Every little girl’s dream birthday cake is a pink fairy princess castle, right? I know I would’ve loved one when I was a child!
My best friend’s little girl, Little Miss A, is turning 5 and after discussing what she might like, we agreed that we can’t go wrong with a pink princess castle cake. Tonight my friend and I put one together and it really was super easy. Anyone can do it!
Here’s our step by step guide to creating your own dream castle birthday cake for your little girl or boy.
Ingredients for the princess castle cake:
Cake base:
A premix or ready-made cake are the easiest. I made the cake with a Victoria Sponge recipe from the BBC.
Frosting:
- 2 tubs of cream cheese
- 2 cups of icing/ powdered sugar
- Food colouring paste- use the good stuff!
Cake towers:
- 4 packs of your favourite biscuit
- a large bar of chocolate
Turrets of the castle:
- 1 pack fondant icing – easiest is the shop-bought ready-made packs, but you can make it yourself
- 4 ice cream cones
For decoration:
- Mini marshamallows
- Silver holographic edible glitter
- little sugar hearts
- … and whatever you think your little one would love to see on the cake!
Step 1- the castle cake
I made the cake base in the morning already using simple Victoria Sponge recipe which I found on the BBC food site. I modified the recipe slightly by adding cocoa powder to the mixture, just because I know Miss A loves chocolate cake.
It took 10 minutes mixing (the electric whisk doing the hard graft really) and 25 minutes in the oven. And I got two 15cm by 15cm cakes- about 4cm thick.
Tip: you can always buy ready made cake base. I find it easiest to work with a sponge cake, as you can always flavour it with the fillings.
The two cakes were placed one on top of the another and glued together with a cream cheese filling (cream cheese and icing sugar mixed together according to taste… again, you can add flavouring to this).
Step 2- mixing the frosting for the birthday cake
We made a lovely cream cheese frosting using 2 tubs of cream cheese and about 2 cups of icing sugar sieved into it, then added pink food colouring to create the pretty pink.
Now for making it pretty and pink!
Over the past years, my friend and I have learnt that professional food colourings are worth their dearer price tag- they colour so much better and more consistently. We had some pink in the store cupboard, of which we used only a quarter of a pea-sized dollop to colour the cream cheese.
I whisked it together with my electric whisk until I, very stupidly, got a fork caught by the mixers of the whisk and wrote off my whisk. Argh! Don’t ask!
Step 3- the Cake Towers
To make the towers my friend bought 4 packs of jammy dodgers. I melted some milk chocolate on the hob in a bain-marie and glued the jammy dodgers together with the molten chocolate smeared between the biscuits. This created 4 imperfect towers, that weren’t coming apart any time soon.
Tip: The advantage of using chocolate is that it hardens fairly quickly (unless it’s the height of summer). In the summer put the towers into the fridge to cool through before attempting to cover them.
Step 4- Shaping your home-made cake
We set the square cake base went onto the middle of the cake plate. Then we chopped the corners off just slightly, so the towers came in closer.
Tip: You can get creative with what goes underneath the cake- we used aluminium foil because we were considering creating a moat of jelly, but if you have a large party you could have a big slab of cake as your base.
Step 5- Covering the cake with frosting
Next task was covering the whole cake with frosting.
We did consider using fondant icing like we did with the Lightning McQueen birthday cake, but thought for once we’d make our life just slightly easier and use an easier ingredient. We trialled a number of implements for the application of the frosting: a silicon spatula and a simple table knife worked best depending on which part of the cake we were working on.
We weren’t really aiming for a very smooth finish and thought a slightly rugged look to the walls would befit the style of the cake.
All-in-all the frosting took just under an hour to spread over the cake and biscuits. The towers were the most fiddly part.
Step 6- the Turrets
In the meantime, my friend mixed some fondant icing with the pink food colouring and after getting a good, consistent colour, she cut the thinly rolled fondant into a spiral. This spiral was then wrapped around ice cream cones to give the turrets their “roof tiles”
Tip: Roll out the fondant between two sheets of cling film- it will stop the fondant icing sticking to the surface and the rolling pin. The cling film will also give it an interesting slightly wavy surface.

Step 7- adding some finer, magical details
The extra little details make all the difference: these were things like the mini marshmallows that became the parapets (the walls’ jagged tops), mini marshmallows cut in half then pressed onto the towers to form windows.
For the gate we scrapped back the frosting and smeared on some melted chocolate. This gave the effect of a rustic wooden gate. To pretty it up we added 5 little sugar hearts.
What gave this easy pink princess castle its real magical twist, in my opinion, was the holographic edible glitter that we sprinkled and blew onto the castle.
What made all the difference to this castle cake though, in our opinion, was the holographic silver edible glitter. It really brought the cake to life and the shimmer just added a magical feel to the birthday cake.
We trialled a number of methods to get a nice even shimmer, but didn’t do too well. In the end, we used a battery power soap bubble blower to blow the glitter out of the spoon and slightly more evenly on to the castle.
The glitter is not cheap- £3.50 for a very small tub, but it goes a long way and does give cakes a very magical shine, don’t you think?
In total this cake took about 2.5 hours to make, but I’ll leave it to you to decide whether you think it was worth the effort:
Little Miss A saw her cake first thing in the morning.
As she’d be in school all day, her mummy thought it would be lovely for her to enjoy looking at the magical, sparkly creation before the hectic party and time came to cut it up. It was her treat to sit having breakfast while admiring the cake.
She was so excited and kept saying:
“but mummy I have a …, I have a…, I have a real princess castle cake.”
Apparently, she talked about it all day at school too and was super quick out of class at the end of the day.
We sampled the cake at the party and it was delicious!
The cream cheese makes a lovely light frosting (I know it’s only light for the taste buds, not in terms of calories!). The biscuits in the tower soaked some of the moisture up from the frosting and were at that junction of crunchy and soft. Like when dunked into tea for just a second or two. Mmmm!
Now your turn:
Do you go out of your way to create memorable cakes for your children? What cake or other food creation were you most proud of so far?
You might also be interested in this super easy, chocolate knight’s castle cake.

Ohh this is so clever, job done for my girls next birthday, I love the biscuit towers. yum, Mich x
That’s so clever
Thank you!
That’s totally awesome x
It is! And so easy! I look forward to your iterations of it for your little princess.
What an amazing cake! I wish I could make anything even slightly that fantastic!!! x
This is so easy that I’m sure you can…anyone can!
Wow., the cake looks amazing! I am going to try it out for my daughters 4th birthday, thanks for sharing the “how to”!
Good luck Lara,
Let me know if you need any advice and how it turns out. I’d love to see a picture.
I LOVE this it is fabulous! I am so so impressed! My daughter has said she would like a princess cake so I am pinning this to my birthday cake board and will let you know how I get on if I do it! Brilliant!
Tried this last night with a few alterations. Went down a storm for my little girls 6th birthday today. Thanks for the easy to follow instructions and handy hints
Thanks for the feedback Vicky! What did you change? I’d love to see a photo of your end result if you get a chance.
Im making a castle cake for my daughter and i got betty crocker moist cakes will that work for the layers?
I can’t see why it wouldn’t. If you find that the layers are flattening each other, then you could put some extra sticks in to hold the layers up.